CN101659082B - System for integral binding and integral hoisting of steel bar framework of box beam and construction method thereof - Google Patents

System for integral binding and integral hoisting of steel bar framework of box beam and construction method thereof Download PDF

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Publication number
CN101659082B
CN101659082B CN2009101834279A CN200910183427A CN101659082B CN 101659082 B CN101659082 B CN 101659082B CN 2009101834279 A CN2009101834279 A CN 2009101834279A CN 200910183427 A CN200910183427 A CN 200910183427A CN 101659082 B CN101659082 B CN 101659082B
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China
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vertical rod
die
loose tool
steel
box
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CN2009101834279A
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Chinese (zh)
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CN101659082A (en
Inventor
查道宏
程方宏
陈剑波
翟洪志
刘防震
吴国勇
陈宝磊
王富伟
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中铁大桥局集团第四工程有限公司
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Publication of CN101659082A publication Critical patent/CN101659082A/en
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Publication of CN101659082B publication Critical patent/CN101659082B/en

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Abstract

The invention relates to a system for integral binding and integral hoisting of a steel bar framework of a box beam and a construction method thereof, and the system is characterized in that a vertical rod of an outer die frame is supported on a pre-embedded part, semi-circular slot openings are respectively formed on a cross rod and an obliquity rod of the outer die frame, the obliquity rod of the outer die frame is supported on the vertical rod by using a bolt, the vertical rod of an inner die frame is inserted in a short sleeve of the vertical rod of an inner die, the upper ends of a plurality of long and short pull cables are suspended on a truss type hoisting carrying pole, and the lower ends penetrate a steel bar mesh at a top layer and are sheathed on a steel pipe. The system has the advantages that the steel pipe is positioned rapidly; gap of the steel bar framework before hoisting is expanded; the short sleeve is arranged in the position of a drainage hole of the box beam, thereby leading the vertical rod of the inner die to be rapidly inserted in the fixed position and not affecting structural steel bar; a plurality of long and short pull cables are suspended on the hoisting carrying pole, ring buckles at the lower ends of the pull cables penetrate the steel bar mesh at the top layer and then hang the steel pipe, and the whole steel bar framework has the advantages ofsmooth hoisting, small deformation, reasonable force bearing, accurate positioning, good integrity, convenient construction and high working efficiency. The system is applicable to the prefabricated construction of the standard-span prestressed concrete simply supported box beam of a railway.

Description

Steel bar framework of box beam overall binding, integral hoisting system and construction method thereof

Technical field

What the present invention relates to is a kind of prestressed concrete freely-supported box beam framework of steel reinforcement overall binding, integral hoisting system and construction method thereof, is applicable to railway standard span prestressed concrete simple supported box beam prefabricated construction.Belong to the bridge superstructure technical field of construction.

Background technology

Current, in the construction of high-speed railway, Line for Passenger Transportation, adopt standard span (31.5m or 23.5m) prestressed concrete box type simply supported beam morely.In the prefabricated process in beam field, reinforcing bar binding adopts base plate and web reinforcement to separate colligation with the top board reinforcing bar to the railway box beam mostly at the scene, connects into integral body again after treating to hang in respectively in the template; Or be employed on the reinforcing bar binding loose tool base plate and web reinforcement colligation accomplished after, hang in internal mold after, the construction method of colligation top board reinforcing bar again.Before a kind of construction method both increased the holding time of reinforcing bar binding operation on precast pedestal, be difficult to satisfy job specfication again to the globality of beam body bar construction and the requirement of accurate positioning property; Though a kind of construction method in back also is the overall binding method; But owing to be that the internal mold that pouring concrete is used is used for top board reinforcing bar binding support; Be placed in the framework of steel reinforcement in advance; Weight when having increased the framework of steel reinforcement integral lifting has improved the requirement to crane gear, the distortion that has also strengthened the base plate reinforcing bar simultaneously.

Summary of the invention

The present invention proposes a kind of steel bar framework of box beam overall binding, integral hoisting system and construction method thereof; Be intended to solve the defective that prior art exists; Make the colligation of case beam steel both satisfy the globality of skeleton structure and the accuracy of positioning control; Can improve the efficient of steel bar framework of box beam colligation again, also not increase the elevating capacity of lifting appliance simultaneously.

The technical scheme that the present invention adopts: steel bar framework of box beam overall binding, integral hoisting system; Its structure is the top that outer loose tool top cross bar is welded on outer loose tool vertical rod; The lower end of outer loose tool brace is connected with bolt with outer loose tool brace lower fulcrum plate, and top is with in the loose tool vertical rod outside of outer loose tool brace stull bolt, and the lower end of outer loose tool vertical rod 1 is all fixing with the welding of loose tool rod member built-in fitting; Inner die vertical rod short sleeve is welded on the loose tool vertical rod built-in fitting; The inner die vertical rod is inserted in the inner die vertical rod short sleeve, and the inner die cross bar is linked to be integral body through inner die vertical pole and inner die vertical rod 8, forms the inner die travel(l)ing rest; Reinforcing bar lifting shoulder pole is welded by shaped steel, and the upper end of short drag-line and long drag-line is fixed on the lifting shoulder pole, the steel pipe below the top layer reinforcing bar that the lower end of short drag-line and long drag-line is passed top layer reinforcing bar and the base plate of top board respectively tangles.

The construction method of steel bar framework of box beam overall binding, integral hoisting is characterized in that this construction method comprises the steps:

One, outer loose tool top cross bar is welded on the top of outer loose tool vertical rod; The lower end of outer loose tool brace is connected with bolt with outer loose tool brace lower fulcrum plate; The upper end of outer loose tool brace is with in the loose tool vertical rod outside of outer loose tool brace stull bolt, and the lower end of outer loose tool vertical rod is all fixing with the welding of loose tool rod member built-in fitting;

Two, inner die vertical rod short sleeve is welded on the loose tool vertical rod built-in fitting, the inner die vertical rod is inserted in the inner die vertical rod short sleeve, and the inner die cross bar is linked to be integral body through inner die vertical pole and inner die vertical rod, forms the inner die travel(l)ing rest;

Three, the upper end that will lack drag-line and long drag-line is fixed on the lifting shoulder pole that is welded by shaped steel, and the steel pipe below the top layer reinforcing bar that the lower end of short drag-line and long drag-line is passed top layer reinforcing bar 15 and the base plate of top board respectively tangles is sling whole framework of steel reinforcement.

Advantage of the present invention:

What 1), reinforcing bar binding inner tube of a tyre mould bases adopted is to install and remove travel(l)ing rest fast;, installs the base plate reinforcing bar binding after accomplishing during construction; Remove before the lifting, make top board reinforcing bar and base plate and web reinforcement on the loose tool frame once colligation become integral body, can guarantee the globality of framework of steel reinforcement structure and the accuracy of positioning control; The time that again the reinforcing bar binding operation is taken on precast pedestal is the shortest, and easy to operate, quick.

2), reinforcing bar binding inner tube of a tyre mould bases is pin-connected panel, vertical rod was directly inserted and is arranged in the short sleeve of case beam spilled water hole position when inner die was installed, and did not clash with case beam base arrangement reinforcing bar, install simple, remove rapidly, occupied ground is little.

3), framework of steel reinforcement is through many drag-lines of lifting shoulder pole suspension; Tangle the steel pipe under the top layer reinforcing bar; Steel pipe plays the distribution beam action; Thereby steel bar framework of box beam weight is hung on the steel pipe, neither increases the elevating capacity of lifting appliance, make the bulk deformation of framework of steel reinforcement and local deformation reach minimum again.

Description of drawings

Accompanying drawing 1 is the facade layout drawing of steel bar overall binding fetal membrane frame

Accompanying drawing 2 is the movable loose tool frame of internal mold elevation

Accompanying drawing 3 is framework of steel reinforcement integral hoisting system elevation

Among the figure 1 is outer loose tool vertical rod, the 2nd, outer loose tool top cross bar, the 3rd, outer loose tool brace, the 4th, outer loose tool brace stull, the 5th, outer loose tool brace lower fulcrum plate, the 6th, loose tool vertical rod built-in fitting, the 7th, inner die vertical rod short sleeve, the 8th, inner die vertical rod, the 9th, inner die vertical pole, the 10th, inner die cross bar, the 11st, lifting shoulder pole, the 12nd, short drag-line, the 13rd, long drag-line, the 14th, steel pipe, the 15th, top board top layer reinforcing bar, the 16th, base plate top layer reinforcing bar.

Contrast accompanying drawing 1; Its structure is the top that outer loose tool top cross bar 2 is welded on outer loose tool vertical rod 1; The lower end of outer loose tool brace 3 is connected with outer loose tool brace lower fulcrum plate 5 usefulness bolts; Top is with in the outer loose tool brace stull 4 bolts loose tool vertical rod outside 1, and the lower end of outer loose tool vertical rod 1 is all fixing with the welding of loose tool rod member built-in fitting.

Contrast accompanying drawing 2; Its structure is that inner die vertical rod short sleeve 7 is welded on the loose tool vertical rod built-in fitting 6; Inner die vertical rod 8 is inserted in the inner die vertical rod short sleeve 7, and inner die cross bar 10 is linked to be integral body through inner die vertical pole 9 and inner die vertical rod 8, forms the inner die travel(l)ing rest.

Contrast accompanying drawing 3; Its structure is that reinforcing bar lifting shoulder pole 11 is welded by shaped steel; The upper end of short drag-line 12 and long drag-line 13 is fixed on the lifting shoulder pole 11, and the steel pipe 14 below the top layer reinforcing bar 16 that the lower end is passed top layer reinforcing bar 15 and the base plate of top board respectively tangles is sling whole framework of steel reinforcement.

According to the spaced semicircular notch of steel bar framework of box beam design, the case beam steel can be located directly fast, accurate on described outer loose tool top cross bar and the outer loose tool brace; Outer loose tool brace is fixed by bolts in fulcrum reinforcing bar and the external mold vertical rod, and tie with reinforcing bar unclamps connecting bolt after accomplishing, and this brace is toppled over backward, and making has big gap between framework of steel reinforcement and the outer loose tool, makes things convenient for framework of steel reinforcement to hang the colligation pedestal.

Described inner die vertical rod and inner die vertical rod short sleeve are steel-tube construction; Inner die vertical rod short sleeve is than the big specification of inner die vertical rod caliber; The inner die vertical rod is directly inserted in the inner die vertical rod short sleeve during installation, and vertical pole and the cross bar through the top forms the inner die travel(l)ing rest again; The inner die travel(l)ing rest rises at framework of steel reinforcement and winches to after the top board reinforcing bar leaves the inner die support, removes.

Described inner die vertical rod built-in fitting is pre-buried according to the position of box-beam structure spilled water hole when reinforcing bar binding pedestal concrete foundation is constructed; Inner die vertical rod short sleeve is weldingly fixed on the built-in fitting after measuring accurate location, and inner die vertical rod and box-beam structure reinforcing bar are not clashed.

Long and short drag-line in the described reinforcing bar tackling system is a steel cord structure; Latch closure is made in every drag-line bottom, and before the framework of steel reinforcement lifting, long drag-line, short drag-line penetrate steel pipe after passing the top layer bar-mat reinforcement; Make steel pipe hold the whole transverse steel of this length range, the whole skeleton of slinging.

Claims (8)

1. steel bar framework of box beam overall binding, integral hoisting system; It is characterized in that outer loose tool top cross bar is welded on the top of outer loose tool vertical rod; The lower end of outer loose tool brace is connected with bolt with outer loose tool brace lower fulcrum plate, and top is with in the loose tool vertical rod outside of outer loose tool brace stull bolt, and the lower end of outer loose tool vertical rod is all fixing with the welding of loose tool vertical rod built-in fitting; Inner die vertical rod short sleeve is welded on the loose tool vertical rod built-in fitting; The inner die vertical rod is inserted in the inner die vertical rod short sleeve, and the inner die cross bar is linked to be integral body through inner die vertical pole and inner die vertical rod, forms the inner die travel(l)ing rest; Reinforcing bar lifting shoulder pole is welded by shaped steel, and the upper end of short drag-line and long drag-line is fixed on the lifting shoulder pole, and the top layer reinforcing bar that top board is passed in short drag-line lower end tangles the steel pipe of below, the steel pipe below the bottom layer of the reinforcing steel that top board is passed in long drag-line lower end tangles.
2. steel bar framework of box beam overall binding according to claim 1, integral hoisting system is characterized in that the spaced semicircular notch on described outer loose tool top cross bar and the outer loose tool brace.
3. steel bar framework of box beam overall binding according to claim 1, integral hoisting system is characterized in that described inner die vertical rod and inner die vertical rod short sleeve are steel-tube construction, and inner die vertical rod short sleeve is than the big specification of inner die vertical rod caliber.
4. steel bar framework of box beam overall binding according to claim 1, integral hoisting system is characterized in that described long drag-line, short drag-line are steel cord structure, and latch closure is made in every drag-line bottom.
5. the construction method of steel bar framework of box beam overall binding, integral hoisting is characterized in that this construction method comprises the steps:
One, outer loose tool top cross bar (2) is welded on the top of outer loose tool vertical rod; The lower end of outer loose tool brace is connected with bolt with outer loose tool brace lower fulcrum plate; Top is with in the loose tool vertical rod outside of outer loose tool brace stull bolt, and the lower end of outer loose tool vertical rod is all fixing with the welding of loose tool vertical rod built-in fitting;
Two, inner die vertical rod short sleeve is welded on the loose tool vertical rod built-in fitting, the inner die vertical rod is inserted in the inner die vertical rod short sleeve, and the inner die cross bar is linked to be integral body through inner die vertical pole and inner die vertical rod, forms the inner die travel(l)ing rest;
Three, the upper end that will lack drag-line and long drag-line is fixed on the lifting shoulder pole that is welded by shaped steel; Lack the drag-line lower end and pass the steel pipe that the top layer reinforcing bar of top board tangles the below; The bottom layer of the reinforcing steel that top board is passed in long drag-line lower end tangles the steel pipe of below, and whole framework of steel reinforcement is sling.
6. the construction method of steel bar framework of box beam overall binding according to claim 5, integral hoisting; It is characterized in that on described outer loose tool top cross bar and the outer loose tool brace according to the spaced semicircular notch of steel bar framework of box beam design, make the case beam steel can be directly fast, the accurate location; Outer loose tool brace is fixed by bolts in fulcrum reinforcing bar and the outer loose tool vertical rod, and tie with reinforcing bar unclamps connecting bolt after accomplishing, and this brace is toppled over backward, and making has big gap between framework of steel reinforcement and the outer loose tool, makes things convenient for framework of steel reinforcement to hang the colligation pedestal.
7. the construction method of steel bar framework of box beam overall binding according to claim 5, integral hoisting; It is characterized in that described inner die vertical rod directly inserts in the inner die vertical rod short sleeve, again the inner die vertical pole and inner die cross bar formation inner die travel(l)ing rest through the top; The inner die travel(l)ing rest rises at framework of steel reinforcement and winches to after the top board reinforcing bar leaves the inner die support, removes.
8. the construction method of steel bar framework of box beam overall binding according to claim 5, integral hoisting; It is characterized in that described loose tool vertical rod built-in fitting is pre-buried according to the position of box-beam structure spilled water hole; Inner die vertical rod short sleeve is weldingly fixed on the loose tool vertical rod built-in fitting after measuring accurate location, and inner die vertical rod and box-beam structure reinforcing bar are not clashed.
CN2009101834279A 2009-09-21 2009-09-21 System for integral binding and integral hoisting of steel bar framework of box beam and construction method thereof CN101659082B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009101834279A CN101659082B (en) 2009-09-21 2009-09-21 System for integral binding and integral hoisting of steel bar framework of box beam and construction method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009101834279A CN101659082B (en) 2009-09-21 2009-09-21 System for integral binding and integral hoisting of steel bar framework of box beam and construction method thereof

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CN101659082B true CN101659082B (en) 2012-02-29

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Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102229196B (en) * 2011-04-19 2012-10-10 中铁二十四局集团有限公司 Integrated reinforcement bar pre-binding forming die constructing method for bridge construction
CN102785290B (en) * 2011-05-19 2014-11-19 中铁二十三局集团轨道交通工程有限公司 Core-penetrating pull-type pedestal for pre-tensioned pre-stressing U-shaped beam and construction method thereof
CN103507157B (en) * 2012-06-29 2015-12-30 中铁二十二局集团第三工程有限公司 Precast T-Beam floor steel bar positioning frame
CN103306211B (en) * 2013-06-18 2015-08-12 中铁三局集团有限公司 A kind of No. 0 block reinforcing bar binding construction method of growing up based on framework beam
CN103696440A (en) * 2013-11-29 2014-04-02 中交第二航务工程局有限公司 Movable reinforcement cage binding jig
CN104002377B (en) * 2014-06-12 2016-03-23 中铁五局(集团)有限公司 A kind of prefabricated case beam reinforcing bar binding and bellows positioning device
CN105821768B (en) * 2016-03-24 2017-06-09 浙江大学城市学院 Box beam bottom web reinforcement global formation mould bases and construction method
CN106042173B (en) * 2016-06-02 2018-08-31 中铁十六局集团铁运工程有限公司 Bridge production system
CN108638324A (en) * 2018-05-28 2018-10-12 中交路桥北方工程有限公司 A kind of construction method of prefabricated case beam
CN109483727B (en) * 2018-12-19 2020-10-13 中建七局安装工程有限公司 Prefabricated case roof beam reinforcement location bed-jig

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